package com.growithus.demo.aop;

import java.util.Arrays;

import javax.servlet.http.HttpServletRequest;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

/**
 * 日志记录
 * 
 * @author guooo 2018年10月25日 下午2:05:16
 * 
 */
@Aspect
@Component
@Order(0)
public class WebLogAspect {

	private static final Logger logger = LoggerFactory.getLogger(WebLogAspect.class);

	@Pointcut("execution( * com.growithus..controller.*.*(..))") // 两个..代表所有子目录，最后括号里的两个..代表所有参数
	public void logPointCut() {
	}

	@Before("logPointCut()")
	public void doBefore(JoinPoint joinPoint) throws Throwable {
		// 接收到请求，记录请求内容
		ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
		HttpServletRequest request = attributes.getRequest();

		// 记录下请求内容
		logger.info("请求地址 : " + request.getRequestURL().toString());
		logger.info("HTTP METHOD : " + request.getMethod());
		// 获取真实的ip地址
		// logger.info("IP : " + IPAddressUtil.getClientIpAddress(request));
		logger.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "."
				+ joinPoint.getSignature().getName());
		logger.info("参数 : " + Arrays.toString(joinPoint.getArgs()));
		// loggger.info("参数 : " + joinPoint.getArgs());

	}

	@AfterReturning(returning = "ret", pointcut = "logPointCut()") // returning的值和doAfterReturning的参数名一致
	public void doAfterReturning(Object ret) throws Throwable {
		// 处理完请求，返回内容(返回值太复杂时，打印的是物理存储空间的地址)
		logger.debug("返回值 : " + ret);
	}

	@Around("logPointCut()")
	public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
		long startTime = System.currentTimeMillis();
		Object ob = pjp.proceed();// ob 为方法的返回值
		logger.info("耗时 : " + (System.currentTimeMillis() - startTime));
		return ob;
	}
}
